mass market paperback, 114 pages
English language
Published Sept. 3, 1978 by Simon & Schuster.
Codes, Ciphers and Secret Writing
Martin Gardner: Codes, Ciphers and Secret Writing (Paperback, 1978, Simon & Schuster)
- ISBN:
- 978-0-671-29954-5
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Explains in simple terms how to encode and decode messages in various ciphers, describes coding machines, and gives formulas for invisible ink.
Subjects
- Questions & Answers
- Non-Classifiable
- Children's All Ages - Reference